Tellurian.



G. T. HUFF- TBLLURIAN.

APPLICATION FILED OCT. 26, 1911,

1,028,355, Patented June 4, 1912.

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Inventor,

Attorneys GEORGE T. HUFF, OF BALTIMORE, MARYLAND.

TELLURIAN.

To all whom it may concern Be it known that I, GEORGE T. HUFF, a citizenof the United States, residing at Baltimore, in the State of Maryland,have invented a new and useful Tellurian, of which the following is aspecification.

The device forming the subject matter of the present invention, is atellurian, adapted to illustrate the relative movement between the moonand the earth, and between the moon and the earth upon one hand, and thesun upon the other hand.

The invention aims to provide novel means for securing a rotation ofthat portion of the device which represents the earth, to provide novelmeans for securing a revolution of the element representing the moon,about the earth, to provide novel means for securing a revolution ofthose elements which represent the moon and the earth, about thatelement which represents the sun, and to provide novel means formaintaining the axis of the element representing the earth, at theproper angle to the plane of the ecliptic.

With the foregoing and other objects in view, which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of invent-ion herein disclosed can be made within the scopeof what is claimed without departing from the spirit of the invention.

In the accompanying drawings,Figure 1 shows the invention in verticaltransverse section, parts appearing in elevation; Fig. 2 is a top plan,wherein sundry parts are removed, for the sake of clearness; and Fig. 3is a diagram, referred to in connection with the movements of certain ofthe parts of the device.

In carrying out the invention there is provided a base 1, the sameconsisting of angularly disposed flanges 2 and 3, the flange 2 beingreferred to hereinafter as the primary track, and the flange 3 beingreferred to as the secondary track. The base 1 is equipped with a seriesof radially disposed, inwardly projecting arms 4, supporting a hub 5.The hub 5 is eccentrically disposed with respect to the center of thecircle in which the vertical flange 3 of the base is located. The hub 5is equipped with a series of radially disposed, outwardly projectingarms 6, con- Specification of Letters Patent.

Application filed October 26, 1911.

Patented June 4, 1912.

Serial No. 656,888.

nected with the vertical flange 7 of a track 8. The track 8 is inclinedat an angle to the flange 2 of the base 1.

Held in the hub 5 is a standard 9, carrying at its upper end, a globe10, representing the sun. The standard 9 will be referred to hereinafteras the sun standard. Mounted to rotate upon the sun standard 9, andsupported by the hub 5, is a beveled pinion 11, meshing into a beveledpinion 12, secured to a shaft 14, the inner end of which is journaledfor rotation in the hub 5, the intermediate portion of the shaft 14being journaled for rotation in the vertical flange 7 of the track 8,the outer end of the shaft 14 carrying a wheel or any other suitablemeans, indicated at 15, and adapted to be employed for rotating theshaft 14.

Fixed to the pinion 11, to rotate therewith upon the sun standard 9, isa socket member 16, outstanding radially from the standard 9. The innerend of an arm 17 is mounted in the socket 16, the construction beingsuch that, although the arm 17 may rock upon its own axis within thesocket l6, and swing with the socket 16, about the sun standard 9, thearm 17 will, nevertheless, be held against longitudinal movement in thesocket 16.

Pivoted as shown at 18, to the outer end of the arm 17, is a head 19.The head 19 has pivotal movement only in the plane defined by the headand by the arm 17. Journaled for rotation in the head 19 is a shaft 20,carrying a globe 21, representing the earth. Secured to the lower end ofthe member 20 is a wheel 22, adapted to engage frictionally with thetrack 3. The members 20 and 22 will be referred to hereinafter as theearth shaft.

The head 19 is provided with a lateral extension 23, in which isjournaled for rotation a shaft 24, provided with a wheel 25, adapted tobear frictionally upon the track 2. The wheel 25 is operativelyconnected with a beveled pinion 26, meshing into a beveled pinion 27,having a laterally projecting arm 28, the pinion 27 being journaled forrotation upon the earth-shaft 20. An arm 29 upstands from the projection28, the arm 29 carrying a globe 30, representing the moon. These members28 and 29 will be referred to hereinafter, for convenience, as the moonbracket.

A finger 32 is held, through the instrumentality of a set screw 31 orthe like, upon the arm 17, the finger 32 being adapted to ride along thetrack 8. In order to maintain the finger 32 in engagement with the track8, the spring 33 is coiled about the arm 17 and engaged at one end withthe socket 16, the other end of the spring 33 being engaged with thefinger 32. In order to maintain the wheel 22 normally in engagement withthe track 3, one end of a retractile spring 3 1 is connected with thehead 19, below its pivotal mounting 18, the other end of the spring 34being connected with the finger 32.

Referring to Figs. 1 and 2, it will be seen that the shaft 20 normallystands at approximately the proper inclination with respect to theecliptic, the shaft 20 representing the axis of rotation of the earth.If the shaft 14 be rotated, the socket 16 will be revolved about the sunstandard 9, through the instrumentality of the inter-meshing pinions 11and 12. The part 16, as it swings around the sun standard 9, will carrywith it the arm 17, causing the head 19 and the said shaft 20 to revolveabout the sun standard 9. When the head 19 is revolved about thestandard 9, the wheel 22, engaging with the track 3, will rotate theshaft 20, and turn the earth globe 21 upon its axis, therebyrepresenting the diurnal rotation of the earth. At the same time, thewheel 25 will engage with the track 2, and through the instrumentalityof the intermeshing pinions 26 and 27, the arm 29 will be caused torevolve around the shaft 20, the moon globe 30 thus being made torevolve about the earth globe 21. Owing to the fact that the standard 9is eccentrically disposed with respect to the track 3, the shape of theorbit of the earth about the sun will be outlined, thereby indicatingthe cause for the change of seasons, it being obvious that since thestandard 9 is eccentrically disposed with respect to the track 3, andsince the arm 17 is of a fixed length, the shaft 20 will be tilted asitrotates about the standard 9, thereby advancing the earth globe 20toward the sun globe 10, and retracting theearth globe from the sunglobe, as the seasons successively change.

The operation of the mechanism whereby the shaft 20 is disposedconstantly at the proper angle to represent approximately theinclination of the axis of the earth to the plane of ecliptic, will nowbe described.

In Fig. 3, the numeral 37 indicates the position of the standard 9. Thecircle 35 represents the path described by the pivotal connect-ion 18,and the circle 36 represents the outer periphery of the track 3. Whenthe arm 17 is in the position indicated by the line 38, and when the arm17 is in the position indicated by the line 39, the shaft 20 will standat the angle shown in Fig. 1. Y Vhen, however, the arm 17 approaches thepoints 40 where the circles 35 and 36 intersect, the shaft 20 will tendto assume a vertical position, at right angles to the flange 2.

From the foregoing it will be seen that in the absence of some auxiliarymechanism, the eccentric position of the standard 9 with respect to theflange 3 would be insufficient to maintain the shaft 20 at the properangle with respect to the plane of the ecliptic. This auxiliary means isrepresented by the track 8 and the finger 32. Whenthe arm 17 approachesthe points 10, the finger 32 will be tilted, as it rides along the track8, and thus the arm 17 will be rocked, tilting the head 19, and ofcourse tilting the shaft 20. Thus, through the cooperation of themechanisms last above set forth, the shaft 20 will be maintained at aproper angle, at all times, with respect to the plane of the ecliptic.

It will be seen that the device hereinbefore set forth, although ofsimple construction, and embracing but few parts, will, when operated,represent closely, the relative move ments of the earth, the sun and themoon.

Having thus described the invention, what is claimed is 1. A telluriancomprising a trackga sun standard held eccentrically with respect to thetrack; an arm mounted upon the sun standard to swing around the sunstandard and to rock upon its own axis; a head pivoted to the arm formovement in a single plane; an earth shaft journaled in the head, andadapted at one end to engage with the track, to secure a rotation of theearth shaft; a moon bracket; rotatable upon the earth shaft; a rotatablemember journaled upon the head and adapted to engage the track; meansfor operatively connecting the rotatable member and the moon bracket;means for swinging the arm about the sun standard; and means for rockingthe arm.

2. A tellurian comprising a track; a sun standard held eccentricallywith respect to the track; an arm mounted upon the sun standard to swingaround the sun standard and to rotate upon its own axis; a head pivotedto'the arm for movement in a single plane; an earth shaft journaled forrotation in the head and adapted to engage the track, to secure arotation of the earth shaft; a moon bracket rotatable upon 7 the earthshaft; a rotatable member journaled upon the head and adapted to engagethe track;

means for operatively connecting the rotatable member and the moonbracket; a secondary track inclined at an angle to the plane of thefirst track; and a finger upon the arm, adapted to ride upon the secondtrack, to rotate the arm.

3. A tellurian comprising a track; a sun standard held eccentricallywith respect to the track; an arm mounted upon the sun standard to swingaround the sun standard and to rotate upon its own axis; a head pivotedto the arm for movement in a single plane; an earth shaft journaled inthe head, and adapted to engage the track, to secure a rotation of theearth shaft; a moon bracket rotatable upon the earth shaft; a rotatablemember journaled upon the head and adapted to engage the track; meansfor operatively connecting the rotatable member and the moon bracket; asecond track inclined at an angle to the first track; a finger upon thearm adapted to ride upon the second track to rotate the arm; springmeans for holding the finger upon the second track; and spring means fortiltingt-he head, to hold the earth shaft engaged with the first track.

4. A tellurian comprising a base including angularly disposed primaryand secondary tracks; a sun standard held eccentrically With respect tothe tracks; an arm mounted upon the sun standard to swing &

around the sun standard and to rock upon its own axis; a head pivoted tothe arm; an earth shaft journaled in the head and adapted at one end toengage with the secondary track to secure a rotation of the earth shaft;a moon bracket rotatable upon the earth shaft; a rotatable membercarried by one side of the head, and adapted to move along the primarytrack; intermeshing pinions upon the rotatable member and upon the moonbracket; and means for rocking the arm automatically, as it swings aboutthe sun standard.

In testimony that I claim the foregoing as my own, I have hereto aflixedmy signature in the presence of two Witnesses.

GEORGE T. HUFF.

Witnesses:

C. L. HARKINS, P. F. CAVENDER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

